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At Mazin Fasteners, we are a leading manufacturer and supplier of Stainless Steel 321/321H bolts in Muscat, OMAN. Our bolts are engineered for high-temperature applications, offering exceptional resistance to oxidation and corrosion. Ideal for use in aerospace, automotive, and chemical processing industries, our Stainless Steel 321/321H bolts adhere to stringent quality standards to ensure durability and reliable performance. Trust us for precision-engineered bolts that deliver consistent results in demanding industrial environments.
Mazin Fasteners, located in Muscat, Oman, stands out as a top manufacturer and supplier of high-quality industrial fasteners. They cater to a variety of sectors, including oil and gas, chemical processing, petrochemical, marine, and construction. The company prides itself on delivering precision-engineered products that adhere to international standards. Among their premium offerings are Stainless Steel 321 / 321H Bolts, which are celebrated for their remarkable resistance to high-temperature corrosion and oxidation. With a strong emphasis on quality, durability, and timely delivery, Mazin Fasteners ensures reliable fastening solutions for demanding industrial applications where strength and long-term performance are crucial.
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 347 | min. | – | – | – | – | – | 17.0 | 2.00 | 9.0 | – |
| max. | 0.08 | 2.0 | 1.00 | 0.045 | 0.030 | 20.0 | 3.00 | 13.0 | – | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 347 | 515 | 205 | 40 | 95 | 201 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
These Stainless Steel 321 / 321H Bolts are crafted with a blend of chromium and nickel, along with a titanium stabilizer that helps prevent carbide precipitation during welding, enhancing their resistance to intergranular corrosion. The 321H variant features a lower carbon content, making it even more effective in high-temperature situations. These bolts boast impressive tensile and yield strength, good toughness, and dimensional stability at elevated temperatures, making them perfect for tough industrial environments that require enduring mechanical and chemical performance.
You’ll find these bolts commonly used in chemical and petrochemical plants, boilers, heat exchangers, pressure vessels, and high-temperature flanged connections. They’re particularly well-suited for securing valves, pumps, and structural assemblies that face oxidizing and corrosive conditions at high temperatures. Stainless Steel 321 / 321H Bolts ensure reliable load distribution, a long service life, and minimal maintenance, making them ideal for industrial, marine, and high-temperature applications where both strength and corrosion resistance are essential.
Mazin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Muscat, OMAN, with over 8 years of experience serving global industries.
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